You don't gotta be so hard on yourself. I thought that the tracks were all quite nice!
Yes they did get repetitive because they were all basically remixes of each other but the base song itself is good. I Loved when the mallet came in for the call and response. I think adding a harmony line of some kind would enhance the song a lot!
Unchanging life had some serious clipping issues with how loud the piano got and it made that track the weakest one by a lot since it kind of hurt to listen to.
Putting some kind of limiter or just reducing its volume would fix that issue.
Great job overall!